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Shareholder Report
 6 Months Ended
Jun. 30, 2024
USD ($)
Holding
Shareholder Report [Line Items]  
Document Type N-CSRS
Amendment Flag false
Registrant Name Columbia Funds Variable Series Trust II
Entity Central Index Key 0001413032
Entity Investment Company Type N-1A
Document Period End Date Jun. 30, 2024
CTIVP - MFS Value Fund Class 1  
Shareholder Report [Line Items]  
Fund Name CTIVP® – MFS® Value Fund
Class Name Class 1
No Trading Symbol Flag true
Annual or Semi-Annual Statement [Text Block] This
semiannual shareholder report
contains important information about CTIVP
®
– MFS
®
Value Fund (the Fund) for the period of January 1, 2024 to June 30, 2024.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at
columbiathreadneedleus.com/resources/literature
. You can also request more information by contacting us at
1-800-345-6611.
Additional Information Phone Number 1-800-345-6611
Additional Information Website columbiathreadneedleus.com/resources/literature
Expenses [Text Block]
What were the Fund costs for the reporting period?
(Based on a hypothetical $10,000 investment)
ClassCosts of a $10,000 investmentCosts paid as a percentage of a $10,000 investment
Class 1
$
32		0.62
%
Expenses Paid, Amount $ 32
Expense Ratio, Percent 0.62%
Net Assets $ 1,440,929,228
Holdings Count | Holding 73
Investment Company, Portfolio Turnover 7.00%
Additional Fund Statistics [Text Block]
Key Fund Statistics
Fund net assets
$
1,440,929,228
Total number of portfolio holdings
73
Portfolio turnover for the reporting period 7%
Holdings [Text Block]
Graphical Representation of Fund
 
Holdings
The tables below show the investment makeup of the Fund
represented
as a percentage of
Fund
net assets. Derivatives are excluded from the tables unless otherwise noted. The
Fund's
portfolio composition is subject to change.
Top Holdings
JPMorgan Chase & Co.
4.9%
Progressive Corp. (The)3.5%
Cigna Group (The)3.0%
McKesson Corp.2.7%
ConocoPhillips Co.2.5%
Marsh & McLennan Companies, Inc.2.4%
Aon PLC, Class A2.2%
Analog Devices, Inc.2.2%
General Dynamics Corp.2.2%
Johnson & Johnson2.2%
Asset Categories
Graphical Representation - Allocation 1 Chart
Equity Sector Allocation
Graphical Representation - Allocation 2 Chart
Largest Holdings [Text Block]
Top Holdings
JPMorgan Chase & Co.
4.9%
Progressive Corp. (The)3.5%
Cigna Group (The)3.0%
McKesson Corp.2.7%
ConocoPhillips Co.2.5%
Marsh & McLennan Companies, Inc.2.4%
Aon PLC, Class A2.2%
Analog Devices, Inc.2.2%
General Dynamics Corp.2.2%
Johnson & Johnson2.2%
CTIVP - MFS Value Fund Class 2  
Shareholder Report [Line Items]  
Fund Name CTIVP® – MFS® Value Fund
Class Name Class 2
No Trading Symbol Flag true
Annual or Semi-Annual Statement [Text Block] This
semiannual shareholder report
contains important information about CTIVP
®
– MFS
®
Value Fund (the Fund) for the period of January 1, 2024 to June 30, 2024.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at
columbiathreadneedleus.com/resources/literature
. You can also request more information by contacting us at
1-800-345-6611.
Additional Information Phone Number 1-800-345-6611
Additional Information Website columbiathreadneedleus.com/resources/literature
Expenses [Text Block]
What were the Fund costs for the reporting period?
(Based on a hypothetical $10,000 investment)
Class
Costs
of a $10,000 investment		Costs paid as a percentage of a $10,000 investment
Class 2
$
45		0.87
%
Expenses Paid, Amount $ 45
Expense Ratio, Percent 0.87%
Net Assets $ 1,440,929,228
Holdings Count | Holding 73
Investment Company, Portfolio Turnover 7.00%
Additional Fund Statistics [Text Block]
Key Fund Statistics
Fund net assets
$
1,440,929,228
Total number of portfolio holdings73
Portfolio turnover for the reporting period 7%
Holdings [Text Block]
Graphical Representation of Fund
 
Holdings
The tables below show the investment makeup of the Fund represented as a
percentage
of Fund net assets. Derivatives are excluded from the tables unless otherwise noted. The Fund's portfolio composition is subject to change.
Top Holdings
JPMorgan Chase & Co.
4.9%
Progressive Corp. (The)3.5%
Cigna Group (The)3.0%
McKesson Corp.2.7%
ConocoPhillips Co.2.5%
Marsh & McLennan Companies, Inc.2.4%
Aon PLC, Class A2.2%
Analog Devices, Inc.2.2%
General Dynamics Corp.2.2%
Johnson & Johnson2.2%
Asset Categories
Graphical Representation - Allocation 1 Chart
Equity Sector Allocation
Graphical Representation - Allocation 2 Chart
Largest Holdings [Text Block]
Top Holdings
JPMorgan Chase & Co.
4.9%
Progressive Corp. (The)3.5%
Cigna Group (The)3.0%
McKesson Corp.2.7%
ConocoPhillips Co.2.5%
Marsh & McLennan Companies, Inc.2.4%
Aon PLC, Class A2.2%
Analog Devices, Inc.2.2%
General Dynamics Corp.2.2%
Johnson & Johnson2.2%